Milling machine organization



June 11, 1935.

Original Filed May 11. 1925 9 Sheets-Sheet 1 HI I lll ATTORNEY June 11, 1935. E. J. KEARNEY El AL MILLING MACHINE ORGANIZATION Original Filed May 11, 1925 9 Sheets-Sheet 2 ATTORNEY June 11, 1935. E. J. KEARNEY Er AL 4,4

MILLING MACHINE ORGANIZATION Original Filed May 11, 1925 9 She ets-Sheet 3 M4 Q W INVENTORSI JEL/GVM ATTORNEY June 11, 1935. E. J.'KEARNEY rm. 2,004,441

MILLING MACHINE ORGANIZATION Original Filed May 11. 1925 V 9 Sheets-Sheet 4 pa/a ATTORNEY HWENTORS I June 11, 1935. I J. KEARNEVY AL 2,004,441

MILLING MACHINE ORGANIZATION Original Filed May. 11. 1925 ,9 Sheets-Sheet 5 /4 56 I K ,2 I2! 120 11.9 I

f7 @miy TORNEY III 4 ala m4 33 r June 11, 1935. E. J. KEARNEY E1 AL 2,004,441

MILLING MACHINE ORGANIZATION Original Filed May 11. 1925 9 Sheets-Sheet 6 2&7 a W M, INVENTORS 3 ATTORNEY.

Jur le 11, 1935 -E.J., KIEARNEQYYQ E1" AL 2,

MILLING MACHINE ORGANIZATION Original Filed May'll, 1925' 9 Sheets-Sheet 95 M 6 0% r KVENTORS BY JLJGVW ATTORNEY v June 11, 1935. Q

v J. KEARNEY. El Al. MILLING MACHINE ORGANIZQTION I o riginal Filed May 11, 1925, '9 Sheets-Sheet 8 I Q r v 7 4 A A? Q l 217 225 222 & 2/0 216 o 218 2 2/2 INVENTORS ATTORNEY June 11, 1935. E. J. KEARNEY El AL MILLING MACHINE ORGANIZATION I Sheets-Sheet 9 Ofiginal Filed May 11, 1925 lNVENTOR-J 3 L, MM

46 ATTORNEY I a ci.

other functions.

Patented June 11 19 35 UNITED STATES PATENT; OFFICE;

. --2,'o'04,441,., MILLINGMACHINE onomz irron Edward J4 Kearney, Wauwatosa, and Parsons and Joseph B. Armitage, "Milwaukee,

Wis., assignors to Kea tion, West Allis,

rney & TreckerCorpora- Application Mayii, meal-am, 29,433

RenewedApril18g1932- 42 Claims. This invention relates to improvements in a milling machine organization, and more particu larly to the transmission and control means whereby the, relative movements of the work and tool are accomplishe A main purpose of this invention is to provide mechanism whereby both hand and automatic control may be accomplished for relative work and tool movement in a plurality of paths.

An important object is to provide in a'milling machine having relative work and tool movement in a plurality of paths, an improved transmission and automatic control mechanism whereby the several movements in the several paths maybe caused to proceed in cycles either independently or in part independently and in or simultaneously, part simultaneously, and whereby the individual movements or cycle portions of each path may be accurately timed in relation to the cycle portions of other paths. j 1

' A further purpose is to provide transmission and control means whereby member or, support movements in various paths as noted above may be driven and controlled'in such a manner that the cycles of any individual member or of the In a milling machine organization,"if the tool is in contact with the work piece;

movements should be quickly all or any movements shouldt'ake place at a ieed or cutting rate, while; if the tool is notcutting,

all movement shouldbe at a rapid or quick trave erse rate, in order'that the idle or non productive completed. This invention therefore contemplates transmission and control mechanism which maycontrol the various movements independently so far as'above described, while insuring that any or all. movements actually in use shall be at like rates, namely, either feed or quick traverse.

Other objects are to provide automatic means which while permitting all the movements to take place simultaneously atapowerrapid traverse rate, permits the rapid traverse rate to be proportioned to the operative conditions inherent to separate or individual movements, so. that for mstance, the table may move longitudinally at a comparatively fast quick traverse rate but when (ciao-21) V v r p h moved in thefvertical direction whenit is m sssary'to raise and lower heavy parts having com: paratively great inertia, or when movedin the cross direction'wherecomparatively short movements are required, may operateatja'reduced or '5 comparatively slow quick traverse rate. "while stillpermitting simultaneous-feed movements at substantially the same ratefor eachioi the movements.,'

Other purposes relateto provision of automatic transmission and control mechanism asabove set forth, while still maintaining ahandior nonautomatic controlsubstantially the same as that ordinarily employed for thehand control of the operative or power mechanism of :Icompletely l5 non-automatic machines, I and readily permitting complete hand or completegautomaticcontrol'or desirable combinations of both,v this being Of'advantage. where themachine is to be worked by operators familiar only with non-automatic control, methods and beingof further advantage inasmuch as notall work is suited in quantity or form for, completely automatic machine operation Another purpose is to provide automatic con- 25 trol. mechanismhaving a portion completely individual. toaicertain more important or most; used movement, while having other portions which may be alternatively available for thecon- .trolof ieitherijof a plurality of other movements.

3 Other purposes relate to simplification and improvementin the construction, organization and operation of the transmission and control mechanism of milling machines.

struction, arrangement and combinations of parts as hereinafter particularly shown, described and pointed out in'the accompanying drawings, specif cations and claims and in vari' ous modiiications and equivalent embodiments 40 thereof, it being understood that the invention may be embodied in avarietyof forms;

In the accompanying drawings, like reference characters denote like parts "throughout the sev eral'views in which: 3 i

Figure 1 is afront elevation or view from the. operators position of a milling machine embodying our invention,-the machine here shown being of the general type commonlyfknown as a knee and column type horizontal milling" ma- 501 Figure Zis" a side elevation of the same ma chine viewedfrom the right of Figure 1.

' -Figure 3 is an elevation of the vertically mov- Ourfinventiontherefore consists in thec0n-f35.

able portion of themachineshown at the front the column on the knee of Figure 2, the view being taken from the left of Figure 1.

Figure 4 is a partial vertical section along the line 44 of Figure 2.

Figure 5 is a developed section, enlarged, through the box or housing shown in Figures 1 and 2 attached to the saddle for cross movement therewith. Figure 6 is a section along line 6-45 of Figure '7.

fixed with the saddle.

Figure 12 is a fragmentary section along the line I2--l2 of Figure 8.

Figure 13 is an enlarged horizontal section through the knee and various associated. mechanism along the line l3--|3 of Figure 1. Figure 14 is a partial vertical section along the line i l-M of Figure 13, showing some of the mechanism of the knee.

Figure 15 is a plan view, partially in section and enlarged, of the table and saddle and portions of the driving mechanism, along line I5--I5 of Figure 1.

Figure 16 is. a vertical section along the line 15-46 of Figure 15. a

Figure 17 is a vertical section along the line l'I-l1 of Figurell.

Figure 18' is a vertical section along the line 18-48 of Figure 11.

The milling machine embodies a column 1 supporting a knee 2 vertically slidable on suitable ways on the column. slidable toward and from 2 isa saddle 4, suitable slideways being. provided for this purpose; and slidable on the saddle 4 is a table 6 likewise provided with suitable sliding surfaces or ways, the various slidable members or supports combining to form a support for the table 6 from the column or stationary support member I togive to the table movement in three transverse directions obtained through the relative movement of the several supporting members. The table movement in the saddle is termed the longitudinal movement; the saddle movement on the knee is termed the cross movement; and the knee movement on the column is termed the vertical movement.

. Rotatably mounted in the column I is a spindle 3 and supported from the column is a rotatable driving pulley 9 forming a power source for driving the various mechanism embodied in the machine. Intermediate between the spindle 3 and the driving pulley 9 is a suitable transmission mechanismior obtaining a variety of spindle speeds, and a clutch controlled by hand lever Iii, similar in the present embodiment to mech anism which has been previously described and shown in Patent No. 1,749,225, March 4, 1930. Choice of the various speeds is controlled by a lever H, as described in the patent referred to.

On the saddle 4 and fixed for movement therewith, is a housing or box member 12, and attached thereto is a case or housing 7 l3, and a swinging cover I4, the several members l2, l3 and [4 providing a support and housing for various transmission and control mechanism to be later described. The housing 12 .rotatably supports a feed member or element l5, and a power rapid traverse member or element 16.

The feed element 15 may be rotatably driven from the pulley 9 at a plurality of feed rates determined by the operator through the manual.

movement of a feed change lever ll, the power being transmitted from transmission elements sup ported on the stationary'coiumn to the member l5 relatively movable with the saddle through the intermediate agency of a universal joint shaft 18, which provides for maintaining an operative connection in spite of the movement or" the saddle, all in a manner and by the means'of transmission and feed change mechanism similar to that previously disclosed in the above named application for the driving of asimilar feed member.

'A constant power rapid traverse movement is transmitted from the pulley 9 to the power-rapid traverse element l8, power being transmitted from transmission elements in the column to the member it through the intermediate agency of a universal joint shaft [9, which provides for relative saddle movement, and through other transmission members from the pulley 9, all in a man ner and by means of transmission mechanism similar to that disclosed in the above named preceding application ior the driving of a similar rapid traverse member. 1

The transmission .mechanism for driving the spindle 8, the feed element i5, and the rapid traverse element it being similar to the mechanisrn employed.v and described for similar purposes in the above named preceding patent, a description of such mechanism will not be repeated here.

A variety of transmission trains originate in the box or housing [2 for the driving and controlling of the table, the saddle and the knee, and for the movement of an automatic control drum.

The transmission mechanism whereby the table 6 may be actuated either from the feed element !5 or power rapid traverse element will now be described:

From the feed element l5, (see Fig. 5) power is transmitted to a gear 23 through a pinion 2!, the extended stem of which is journaled in the horror housing 12 and has the member 5% fixed upon its opposite end. The gear 26 is provided with an extended huh having clutch teeth 22 adapted to'engage, when the gear 21; is shifted in the proper direction, with clutch teeth fixed with a pinion 24, the pinion 2! being made of suihcientwidthto permit the shifting of the gear 2|], while still maintaining operative engagement.

The quick traverse element It is fixed with a shaft 25 journaled in the box l2, and keyed for rotation with shaft 25 is a sleeve 26. Upon the sleeve 26 is slidably keyed a clutch member 21, having clutch teeth 28 adapted, when the element 21 is shifted in the proper direction, to engage with clutch teeth 2.9 on a gear 3B. The pinion 24 and the gear 38 mesh together, and the gear 3% meshes with a gear 3! rotatably mounted on a sleeve 32 fixed in the housing l2.

It will be apparent that when the gear 28 is connected, as above described, to drive the pinion 24, the gear 3! will be driven at a feed rate, while when the member 2'. is connected, as above described, to drive the gear 3&3, the gear 35 will be driven at a constant or rapid traverse rate; and

shifting of the hand lever in the .furthermorerthat for any given rotativei speed of the respective members lfi and 15, the ratio or comparative rates of feed or quick traversemotion transmitted to the gear 3! part upon the ratio of the gears in part upon the rate of actuation of the elements lfiandiii. i 1 I The gear 28 and theclutch member 27 are ink terconnected for simultaneous movement by the means ofa lever 33 (see Figure 12) theopposite will depend in ends of which carry pivoted shoes 34 and 35 ,engaging annular grooves'in therespective mem bers, the arrangement being suchthat when the gear 29 is moved in the one direction and the clutch teeth'il'i and 23 thereby engagedto drive the gear 353 at a feed rate,the clutch member 21 will be moved out of engagement and vice'versa. The gear 3! is fixed with a bevel gear 35, which meshed with a mating'bevel gear ispermanently 31 fixedon the lower end of a stem 38, upon the opposite end of whichis mounted a-spur gear 39, the stem 38 being rotatably "mounted in the saddle i (see Fig; 16). stud it in the saddle 4 is a spur gear 4! to be driven from the'gear 39 mediate gears42 and 3; and fixed withthe gear M is a bevelgear pair of oppositely arranged gears 35 and 5 arerespectively provided with clutch teeth =1? and 48, and a clutch member 49 is slidably keyed between the bevel gears on a sleeve or collar 59, which inturn isslidably keyed with and supported from the lead screw or'table screw 5!, whichiis fixed for rotation in brackets 52 and 53 attached to the-table 6.

Fixed in thesaddlel l is a nut 54 engaging the screw 5 i; It will be apparent that the bevel gears lliand 46 will be oppositely driven whenever the gear provided with clutch teethcomplementary'to the teeth M and 13, and adapted for engagement therewith whenever theclutch member isshifted in one or the other direction; andwhen so shifted to engage the complementary clutch'teeth, the

screw. 5! will be caused to rotate in the one or the other direction, and caused to advance axially in the one or the other direction relative to saddle 4, owing to the'engagement of the screw with the nut'fi l. The screw being fixed against axial movementinits bearings in the table brackets,

. the table-will beiorced to fol-lowthe axial movements of the screw. I i I It will therefore be apparent that either a feed or rapidtraverse rate may be transmitted to. actii-h atethe table; and in either direction from the respective feedand quick traverse elements {5 andlfi. L f

The means by which the feed or quick traverse movements of the tablemay be hand controlled iorrate and direction will'now be described:

i As previously noted, the clutchmember 2'! and the gear it] maybe simultaneously shifted by the means of the'intercc-nnecting lever 33. The 1ever 33 may be shifted from a" hand lever 55 as follcws:'-- i The lever 33 (seel igs. 6, 9 and 12). is provided with a pivoted shoe 55 engaging-With a slot in a a rod 57 which is connected to be operated from the hand lever 55 bythe means of a shoe 58 pivcted in the one end of a pivoted intermediate 1ever 59, having at itsvopposite end toothed engagementwith a segment'fill upon-theshank 6! of which-the hand lever'efiis mounted. The one or the other 24 and 30, and,

Rotatably V mounted on a through the inter-- M permanently meshed with a disposedbevel gears 45 and journaled for rotation in the saddle 4. The bevel Bil is actuated. -.'Iheiclutch member 49 1sdirection will therefore engage either the clutch teeth 22 withthe clutch teeth 23, or the clutch teeth 28 with the clutch teeth29, thereby transmittmg either a feed or a rapid traverse movement to the tabletrain.

{Ihetable reverse clutchmember 49 is providedf see Fig 15) with an annular groove 62 engaged by a fork or shifting member 63 fixed for movement witha rod64 provided at the one end with rack teethfiS engaging pivoted segment 66.. .A hand lever 61 is pivoted in the saddle 4 on a stem or shank. 68, upon the lower end of which is fixed a segment 69. Arranged to transmit motion between thesegment 69 and the-segment (it is a pivotedlever. 'lllhaving at its oppositeends teeth adaptedto engage the respective segments. a

- It 'is therefore apparent that the reverse clutch member! may be shifted in the one direction or the other through thezoperationrof the lever 61 and through the medium of themotion transmitting elements just described, thereby causing engagement withthe one or the'other orthe oppo-' sitely driven'bevel' gears 45 or 16, and accordingly asengaged with the one or the other, opposite motion would be transmitted to the table from "thegearSil. i

will engage. complementaryxclutch teeth IS-fixed previously describedis slidably 2 onagear. l8 wherebythe gear 16 will be; driven from thelfeed memberlii'and if so driven the gear 16 will drive a gear 8!! meshed therewith, as

will be later further described ,-at afeed rate.

.Slidably keyed on the previously described shaft 25, is a clutch member or element 'l'l'provided with clutch teeth'18 so disposedthat when thefmember IT is. suitably moved,- they will engage and drive complementary clutch teeth 19 fixed'onthe gear 80, whereby the gear will be driven 'from the "quick traverse. member Hi. The gear 80 meshes with a gear 8| rotatably supported from a shaft 82 having suitable bearings inthe housing l2 A gear 83 is similarly mounted for rotation on shaft 82 and is connectedto'be driven from the gear 80in adireetion opposite to the gear 8l= through the idler gear M l-meshing with the gear 8 0 and the idler 85 fixed for rotation with gear 84 and meshing with the gear 83, the gears beingfixed for rotation with the shaft 86 journaled in'the housing 12.: The gear 8| is provided with clutch, teeth 81', provided'with clutch teeth 88. A clutch member 89between the two gears is slidably keyed with a sleeve 93; which in turn is slidably keyed with l The member 89 may be shifted in the shaft 82." the one or the other direction for alternative engagement with'theclutch teeth 8'! and 88, whereby the .shaft82'may be drivenin theone or the and thegear 83 is GO other direction, the drive beingeither at a feed or rapid traverse rate accordingto "the engage ment'of the clutch members 73 or 17 and the relative rate of the feed and rapid traverse being determined in part by the ratio ofthe gears'lfi and '88 and in part byuthe speed of the driving elements l5 andlB.

a Fromthe shaft 82 mechanism is provided for alternatively actuating 'eithe'r the saddle in it front end of shaft 82 is a gear 206, see Fig. 13,.

meshing with a gear 20! rotatable on a sleeve 202 fixed with knee 2. Gear 2! drives an angular gear203, rotatable on a sleeve 264-, through an idler gear .205.

Journaled in an axial bore in the sleeve 202 r is a rotatable lead screw 2H6, prevented from axial movementrelative to knee 2 in the usual manner, and in threaded engagement with a nut 26'! fixed with saddle 4; The gear 26l is provided with clutch teeth 20 ia, and a clutch member 268, slidably keyed on lead screw'2ll6 is provided with complementary clutch teeth adapted to engage therewith when the clutch member is shifted in the proper direction in which case the screw will be driven to move the saddle from shaft 82, or to disengage when shifted in the other direction.

A shaft 285 is journaled in an axial bore of the sleeve 2%, and a gear 2 It is fixed for rotation with the shaft, gear 210 meshes with a gear 2, see Fig. 14, which is fixed on a screw 2I2 which is the inner member of a telescopic screw of usual construction, having a nut 2 l3 fixed in an extension 294 of the base of column I. Gear 203 is provided with clutch teeth 203a, and a clutch member 2|5, slidably keyed on shaft 239 has complementary clutch teeth adapted to engage therewith when the clutch member is shifted in the one direction in which case the screw will be driven to move knee 2 from shaft 82, orto disengage when shifted in the other direction.

. It will be noted from preceding description that the relative rate of the table feed and rapid traverse is determined in part by the ratio of the gears 24 and 30, while the relative rate for the saddle and knee is determined in part from the ratio of the gears 15 and 80. Different relative rates may therefore be had for the table and for the saddle and knee. According to other gearing in the train, the table might be given any rate of feed and by suitable gears 24 and 38 any relative'rapid traverse rate, and likewise with the drive for the other supports. It is preferred, however, that the feed rate for the several supports should be made the same and that the rapid traverseof the table should be relatively more rapid than for the other supports. a

a The several clutches by which the knee and saddle movements are accomplished, may be hand controlled by the following mechanism:

The clutch members 13 and" (see Figs. 7 and 9) are interconnected for simultaneous movement by the means of a pivoted lever 91, the lever 91 having pivoted shoes 92 and 93 having engagement in the annular grooves of the respec-tive clutch members. The lever 9,! is likewise provided with a pivoted shoe 94 engaging a suitable groove or slot in the rod fi'l which, as previously described, is movable from the hand lever 55. The hand lever may thus move the lever 95 in the one or the other direction to determine the engagement of the respective clutch members 13 and TI, the arrangement being such that when the one is engaged the other is disengaged, thereby determining whether the shaft shall be driven at a feed or rapid traverse rate. r For the movement of-the reverse clutch member 39, a hand lever 95 (see Fig. 8') is fixed on the end of a shaft or rod 96 journaled at the rear end in a projecting lug 91, and at the front end in a plate on the knee 2. The shaft 96 is slidably splined in the hub of a bevel segment 98 axially aligned with the shaft and journaled in the box or housing I2 with which it moves, the splined relationship between the segment 98 and the shaft 96 thus permitting movement of the segment from the hand lever 95 in whatever relative position the saddle may stand on the knee 2. V

The segment 98 meshes with bevel gear teeth on the one arm of a lever 99 (see Figure 8) pivoted in the box l2 and provided with another arm ill!) (see Figure 7), which has suitable gear teeth meshing with an extended arm of a pivoted fork lfil, the fork being provided with pivoted shoes I812 engaging an annular groove in the clutch member 89.

Through the motion transmitting mechanism above described, the hand lever 95 whenmoved in opposite directions, may actuate the clutch member 89 into the one or the other of its positions of engagement and thus cause the shaft 82 to be driven in thev one or the other directions.

The power trains by which shaft 82 may actuate the saddle and knee have been previously described and the effect thereof is manually controlled by a hand lever 216, see Figs. 13 and l t, which is connected with the clutch members 268 and 255 as follows. A lever 21'! is fixed on a short shaft 258, pivoted in the knee. Lever 211 has oppositely extended arms respectively engaging suitable annular grooves in the respective clutch members. Fixed on thelower end of shaft 2H8 is a segment 219 engaging a segment 223 fixed upon or integral with a short shaft .22l'

upon the outer end of which the lever 216 is fixed. When lever 2 it is swung in the one direction, one of the clutch members 268 or 2(5 will engage to be drivenfrom shaft 82, and when swung in the other direction, theother clutch member will engage. A sprin plunger 222 serves to locate lever 2E6 in the ,diiferent positions, the end of the plunger being engageable with suitable holes or notches in the knee, from which it may be withdrawn to move to a different position, by the means of a hand grip 223, which also serves to move the lever when the plunger is withdrawn.

It will thus be apparent that the movement 0 the shaft 82 may be hand controlled to give either a feed or quick traverse and in either direction to the knee or saddle as may be desired.

In addition to the hand control above described, the power movement of the table may be interrupted by the means of dogs on the table having connection at intervals. of table movement and through suitable trip means and connecting elements with the reverse clutch element 69, whereby the clutch element will be moved from either position of engagement to a central or non-driving position as follows:

Lever El, see Figs. 1 and 15, is provided with upstanding trip pins or lugs 224 and 225 ar-' ranged to stand at equal distance from the front edge of table 6 when the clutch member 49 is in central position. When the lever is moved to engage clutch member is in either direction, one of the pins is moved in toward the table edge, and into the path of movement of one or the other of dogs 228 or 22?, which are adjustably fixed on the front edge of the tableby the means of T bolts and a T slot in the usual manner. The dogs are provided with angular faces adapted to contactthe pins during the course of table movement and move the pin back to a position corresponding to the central or disengaged clutch position, table.

' damage can result ports with the reverse by the clutch element thus stopping the I movement of the Positive trip dogs 226a and 22141 are permanently fixed on table, 4 in a positionito contact with one of the trip pins beforetable Breaches the limit of its travel :ineither direction, thereby-disengaging the power table movementbefore in case the aoperator failsfito suitablyposition the dogs'ZZGor 221. i

Also the cross or saddle 'movementsand the 'vertical or knee movement maybe-interrupted by the means ofdogs respectively on the saddle ,and onthe column having connection at intervals of the movement of the respectivesupclutch element 89; wherewill bemoved from either position as follows: v M a The shaft 96, see Fig. 8, which controlslclutch member 39, aspreviously described, is extended iandcarries'a bevel gear'228 fixed thereon, which mesheswith a bevelsegment 22elfixed ona'shaft .230, upon which is fixed a spur-gear23l. .gear 28in, meshes with suitable rack teeth in S trip pinsor plungers 232,233, seeF'ig. 3, disposed on opposite sides of thegear periphery, andlwith angular end. portionslprojecting rearwardly to be contacted by suitabledogs234 or 2375 adjustably fixed ,on column I by the means of-a T slot vandjrbolts in the usualmanner. "Whenshaft dogs 234 or 235, if the tioned in their adjustment.

of the dog will then contact end portion during knee ,movementiandiorce operator fails to or 235.

either 95 is movedin either direction t oengagesclutch member 89, thereby startingthe movement of kneesz if the clutch member H is engaged the one or the other'of pins 232, 233 is moved for its angular end portion to standin the path ofrelativeresulting movement of one or the, other-of The angular; face with the angular the contacted pin back to a position corresponding to a the knee V T r trip dogs 234a and 23500 are permanently fixed on the column in a position, to contact with one of the trip pinsbefore knee" 2 Positive reachesthe limit of'its travel in -either direction, thereby disengaging the powergknee move ment before damage can result in case that the 'The pin or plunger 233gis extended to engage by the means of suitable rackteeth, see Fig. 3, with a pinion 23%, :able rack teeth on trip pinsor. plunger 23'I'and ment one or the, other ofthe dogs wilhii suitably adjusted, contact with such pin andforceitcback again, thereby moving back to a central or disengaged position and stoppingthe movement of thesadolleq- J Positivetrip dogs 239a and 240a are perma- ,nently fixed on the saddle 4 in a positionlto contact with one of the trip pins before-saddle 4 clutch member 89 reaches the limit of its travel in either direction,

.YA drum or carrier-or I Another shaft dogs are suitably ,posidisengaged clutch position, thereby mov ing clutch member 89 back to a central, disengaged position and stopping the movement :of

vides, 1 when opened, access to the I09 and I I0,.while a previously mentioned pivoted 'cover I4 provides access to the periphery of the drumxorlcontrolmember H I for the adjustment or. removal of the various dogs. 7

suitably position the dogs 234 knee movement.

.member I ll-will continue to move in the thereby disengaging the power'saddle movement before damage can I result in case the operator fails to suitably position the dogs 239 or 240.

The mechanism by the means trolled will now be described:

control member I II (see Fig.l8, etc); provided with a plurality of removable and adjustable dogs withtrip means to connecttbetween car1'ier,,aswill.be laterdescribed." I V Fordriving the carrier II I, the shaft 86 is extended irearwardly as particularly shown in Figure 5, and projects into the box or housing I3, which, as previouslynoted, is fixed with the'box It is there provided with a gear I03 fixed !2. on the end of the shaft and meshing with a gear lfl lrotatably mounted on a shaft I05 journaled in thethousing I3. "The gear I04 is shiftable endwise; and provided with clutch teeth I06 which,

when" the gear. is suitably shifted, and actuate complementary clutch teeth on a clutch; member I01 fixedxwith theshaft I05. When the complementary clutch teeth are enmay engage naled in thebox I3,"and theends of the shafts of which the various movementsmay be iautomaticallyconi H6, Land H8, an'dflpower. drivenin rotary cycles, is provided the respec tive dogs and the several transmission clutches" at intervals during each cycle or rotation of the I08- (s ages and 11) is'J-tuil -gaged, theflshaft I05. will beidriven from the v I 05 and "I08 are prepared for receiving intermeshingapick-oiior change gears I09 and I I0, which are provided insets, to give; any: desired ratio of I -speedsbetween the two shafts, and which may be interchangeable 'or reversible in their: position on ithe shafts. "I 090; permanently meshed with a worm wheel I I 5 Fixed on the shaft I08 is a worm hub of the carrier or control member rotatably mounted "in the box I3 on a stud I12 fixed injthe box. A pivoted cover H3 pro- From the mechanism justdescribed, it willnow be apparent. that the carrier or control'membe'r III will be actuated whenever either or anyof .the supports of the machine are actuated, and will :be drivenat afeed rate or ata power 'rapi'd traverserate accordingly as the actuated support "or supports'are so driven, although the arrangementis such that the'carrierjlwhen operated at a rapid traverse rate,wil1 partakeof the relatively slow rapid traverse ratelutilized for saddle and The member II I, however, is not reversible, and although'oneor several of the suppOrts maybereversed or actuated in recipro catory or cyclic movements, the carrier or control v same directionrso longv as the clutch teeth I05are in a drivingxposition, repeating rotary cycles which normally may be consideredto consist of one revolution ofthecarrier. The rate of carrier movement ordurationof a carrier cycle or revolution may bealtered by the means of the "pick-off or change gears I 9 and l I I0, whereby its cycle time duration may equal or exceedthe combined cycle I duration of the several supports or membersconl trolled thereby, irrespective ofvariations in the distance traversed by the controlled supports;

The dogs H6, H1 and-I I8 (see Figsgll 18, 'etc.) i are adjustably fixed for rotation with the drum or ;control element III by the means of bolts engagchange gears ing the respective slots II9, I20 and I2I" (see Fig. ure 8), and suitably positioned and pivoted in the housing or case I3 are'the'trip elements I22,

' I23 and I24. Each of the trip elements are provided with oppositely extended arms or cam sur faces which are shown for the element I22 as I25 and I26, the respective arms being offset so that 'they may be contacted by differently shaped dogs. The arm I25,'for instance, may be contacted by a dog in the slot I I9 similar to the dog I I6, but having an upwardly'projecting portion at the left in- EJ625121 of at the right, while the arm I26 may be .contactedby a dog fixed in the slot I I9 having an upwardly projecting portion at the right as shown for dog IIIi. 'If the one arm is contacted by a suitable dog, the member I22 will be swung in the one direction; while if the other arm is so contacted, the member I22 will be swung in the opposite direction.

'It will thus be apparent that by the use of suitable dogs retained in suitable slots, any one of the trip elements I22, I23 or I24 may be actuated in either direction at any time during the carrier cycle from dogs adjustablymounted: for rotation with the carrier II I. Y

The respective trip members I22, I23 and I24 are connected for movement of the respective clutch members or elements determining or controlling the various support movements, as will now be described: I

The clutch element or member I22 (see Fig.. 7) may, when actuated as above described, move the reverse clutch lever or fork IIII through the medium of an extended shaft I2'I suitably journaled in the housing I2 and I3; on the one end of which the member I22 is fixed and having at the opposite end a segment I28 meshing" with suitable gear teeth on an extended arm I29 of the fork IOI. It will thus be apparent that the reverse clutch member as may be actuated in either direction from the movement of the carrier and at intervals determined by the rate of carrier rotation and by the positioning of the adjustable .dogs H6, or similar dogs as above described. By the means of transmission mechanism previously described, the control thus applied to the clutch element I22 may be rendered effective either on the knee or thesaddle, to determine if and when they shall be I actuated and in which direction.

The member I23 may actuate the table reverse clutch 49, the member being fixed on the one end of a sleeve I3I suitably journaled in the box I3 and having fixed at the other. end a bevel segment I3I meshing with a bevel segment I32 fixed on the lower end of the stem or shaft. I33, at the upper end of which is fixed the segment I0 which has previously described motion'transmitting connection with the fork 63 for the movement of the clutch 49. It will thus be apparent that suitable dogs III, or similar dogs mounted on the carrier III may actuate the clutch &9 in either direction at intervals determined by the rate of carrier movement and the positioning of the dogs, and may thus determine if and when and in what direction the table may be actuated.

The member I24 may simultaneously actuate the several feed and rapid traverse clutches previously described, the member being mounted at. the one end of a sleeve I 34 journaled in the housing or box I3 upon the other end of which is previously fixed the lever 59 having previously described motion transmitting connection with each of the several feed and rapid traverse clutches. It may therefore be seenthat the several feed clutches may be simultaneously on- T be caused to engage.

rgaged when the member I2 1 is actuated in the one direction or the several quick traverse clutches may be simultaneously engaged when the member 7 I24 is actuated in the opposite direction, the member being actuated in either direction by the means of dogs II8 or similar dogs adjustably mounted on the carrier HI, the position and form of the dogs IIS and the rate of carrier movement thus determining if and when the rate :of the driving transmission or trains for the complished by providing the segment I0 (see Fig.

15) with a cam or detent I35 which is acted upon by a spring pressed plunger or arrow H6 and which has, when in the position corresponding to the central or non-operative position of the clutch, a notch I31 into which the plunger I 36 may. enter, thereby restraining the movement of the segment and through the connecting elements alsorestraining the movement of the clutch 49.

Should the detent I35 be shifted through the actuation from any of the control means'previously described from its position wherethe central notch is engaged by the plunger, the formation of the cam surface and the relationship of the various parts is such that the plunger having passed over the point of the cam in the one or the other direction tends to force the clutch quickly into the one or the other position of engagement.

. A similar means is provided for retaining the clutch member 89 in a central or non-operative position, and for quickly throwing it in one of the other direction of engagement by the means of a similar cam I38 (see Figs. 8 and 10) on an exu tended arm of the pivoted segment 99, the plunger I39, and the central notch I48, the cam controlling the movement of the clutch through the motion transmitting connections from the segment 99 previously described.

The levers 33 and BI controlling the movement of the various feed and quick traverse clutches are respectively provided with the cams or detents MI and I42 (see Fig. 9), which are respectively acted upon by the spring-pressed plungers I43 and I44. The cams MI and M2 have no centralnotch and therefore when either cam has passed over the position corresponding to the central or neutral position of the clutches controlled thereby, the plunger will immediately operate to cause opposite engagement of the clutches.

"both moving in the one direction at the same time that the clutches l3 and 20 move in the opposite direction. This requires that at each movement of the rod 5'! in either irection, two clutches will Clutch elements, when engaging, sometimes corne in such positions of the mating teeth, that there is a slight delay or interval before the opposed teeth have revolved to relative positions to permit engagement, and

to avoid such delay in the one clutch from affectiing the other, and to facilitate the engagement, means are provided whereby each clutch may engage in a semi-independent manner. Lost motion is provided between the rod 51 and the shoe 56 and 94, the lost motion being sufficient'that, when therod 56 is moved in either direction, either by the movement of the carrier dog H8 .or the hand lever 55, the clutch may be thrown quickly into engagement after the arrow I4! or I02, as the case may be, has passedits center.

The lost motion likewise serves other purposes.

When changing from a feed to a power rapid traverse or vice -versa, it is important thatbefore the dis-engagement of the one set of clutches is" effected, the detents or arrows should bepositioned to effect the re-eng agement oi'the'other set, for the reason that both setsof clutches may not both be engaged at one time without damage and it is therefore necessary that one set becom pletely dis-engaged before the other starts to engage The lost' motion mentioned above renders it certain that, no matter iri'which direction the rate of movement of the actuator, islikewisehighly desirable to prevent the clutches from being'held in a position of partialengagement by the slow movement of an inexperienced operater when moving the clutches by the means of the hand lever 55, and for other reasons. i

Since the machine is provided with-control means independently of the carrier and it is purposed to operatethe machine' at timeswithout the use of'th'e automatic control features pro- 7 'vided by the carrier, and'for otherreasons; means are provided whereby the carrier may disconnected from its driving train and remain stationary as long aslmayi be desired, or may be again re-engaged immediately to continue the automatic control from the carrier. 7 i

Apivoted hand lever I54 (seeFig. 11) carries an arm I55 which is connected to move the pivoted lever I56, bythe means of the rod I5'I.

, The lever 556 is connected at the one end with a rod I58 ,having a forked end I59, engaging the sides of the gear I00. .As, previously noted,fl,the gear I04 may be shifted and thereby engage or dis-engage the clutch I06, through which the carrier drive is. transmitted. Itwill thus be apparent that the carrier, drive may be. interrupted or re-established R reverse clutches may be tripped into a neutral positioneither from the movement of the support controlled by the respective clutches, or from by the means of thehand-lever I54. 7

Carrier movement maylikewise be interrupted by the movement of the carrier. The lever I56 carries at the one end a pivoted latch I60 normally heldin position against a stop pin: I6I by the means of a spring I62. When in this position and with the lever I56 in the position corresponding to the engaged positionof the clutch I06, the latch I60 will eventually be contacted by aremov- 1 able dog I63 on the periphery ofcarrier II I. The frelativeform and dimensions of the parts aresuch that when so contacted as the dog I63 continues.

its movement, the latch. I60will be firstmoved away from the position in which it is normally held by spring I62 and arrive at a second position i where no farther movement can take place without swinging'the entire lever I56,

plying a crank to the one the end of the supports by the means of support,wor bythe means which move *ment continues until the clutch I06 dis-engages mediately reeestablished by the movement of the hand lever I54; .TQdO this it is necessary to .continue the movement of the lever I56 .until'the point of the latch I60 clears the dog. E63,.where the spring I62.willi .to its original position against the stop pin'I 6B, in which position it will now clear the dog I 63. The movement of thehand lever I5 is then reversed mmediately pull the latch back I A general summary of the action of the control mechanism is as'follo'ws:

The movements of the various supports may be hand actuated whenfthe transmission mechanism is inoperative, the table being moved by aptable screw 5|; the saddle by applying'a crank to ure 13; and, the knee may be raised and lowered by applying a crank to the end of the shaft'209 shown in Figure 13. Y

.The'various movementsof thesupports may be hand controlled when power. actuated. The lever-55, when moved, changes the rate of all actuated supportsfrom feed to power rapid traverse and vice-versa; the lever 67 reverses or stops the table travel, and thelever 95 reverses or stops eithergthe cross movement of, the saddle or. the

cross screw 206 as shown in Fig- 7 and the carrier movement stops; It may be imor the other end of the vertical movement of the knee, the two latter.

movements being selective according to the position of engagement of the clutches 208 -and -2I5, as shown in'F'igure,13.f' F

i Any of the movements of any support. may{be-l interrupted from'the movement of the respective adjustable dogs, at. any of the positions, intermediate the full travel of the of 0 positive or fixed dogs at the extremelimits of s pport movement; asidescribedabove. l

Any of the movements of any support may be interrupted or ref-engaged in either direction and at any. time and the rate of support actuation maybe changed from feed to rapid traverse or I vice-versa-at any time by the means of adjustable dogs on the carrier.

Since the rate of carrier movementmay be changed, the carrier may be given arateof rotation whichwill cause it to complete one revolution, or. one cycle of its movement in thetime or a trifle more than the time requiredfor one -ormore of the supports .to movelthrough their individual or combined cycles of movement, and therefore the carrier may be used to control all the movements of a plurality of members.

It will be noted that for automatic control the the movement of. the carrier. -It is desirable that when support: movement is to be interrupted, thisv shouldbe done by the movement of the support,

in -every. complete cycle, or as much more often as may be necessary, the dogs on the carrier will be brought to aposition exactly corresponding to a given'position of'the movement of, each of the members controlled thereby. Since the carrier does not move in unison with'any given support and i's at times completely disconnected from any given support, this is an important feature of the automatic "control 'devicei The carrier and the various supports, each having completed their respective cycles of movement, and all the supports having been returned to their starting point and stopped there, the carrier movement may also be interrupted, in which case all the supports will remain stationary until such time as carrier movement is established again by the hand lever l5 l, which may be immediately or at any future time. Whenever the carrier is caused to start its new cycle, the various members will also'repeat their cycles. Automatic action may thus be continuous or may be automatically stopped once per cycle.

Having now fully revealed our invention, we

claim:

1. In a milling machine the combination of a work support, a rotatable tool spindle adjacent said support, a support for said spindle, said supports being relatively movable in a plurality of directions, a plurality of driving connections respectively for said different directions of support movement and each including means shiitable for altering the effect of its driving connection, a carrier movable independently of said support movement, a plurality of dogs on said carrier, a

plurality of trip devices respectively movable into the-path of movement of the respective dogs and respectively having motion transmitting connection with different of said shiitable means, and

' a powertrainconnected to drive said carrier exclusive of said shiitable means. ii

2. In a milling machine the combination of a work support, a rotatable tool spindle adjacent ,said support, a support for said spindle, said supports being relatively movable in a plurality of directions, a plurality of driving connections respectively for said different directions of support movement and each including means shiftable for altering the effector its driving connection, control mechanism including a carrier rotatably mounted, a power train connectible for non-reversibly actuating said carrier in rotary cycles independently of support movement, a plurality of dogs on said carrier, and motion transmitting connections from said shiftable .means of each of said driving connections including a portion positioned to be contacted by one of said carrier dogs during a cycle of movement of said carrier, whereby said shiftable means in each of said driving connections may be moved at intervals determined by the cycle of carrier move- 'ment. h

3. In a milling machine organization the combination of a work support, a rotatable tool spinle adjacent said support, a support for said spindl'e, said supports being relatively movable in a plurality of difierent directions, a power source, a plurality of vshiftable clutch elements, transmission mechanism connecting said power source through the respective clutch elements for said different directions of support movement, a carrier mounted for cyclic clutch shifting movement independent of support movement and provided with dogs, motion transmitting connections from the respective clutch elements and each having a portion movable into the path of movement of a carrier dog, and a power train connected to drive said carrier and to be driven from said transmissionmechanism at a point unaffected by the movement of either of saidlclutch, elements.

4. Ina milling machine the combination of a work support, a, rotatable tool spindle adjacent said support, a support for said spindle, said sup,-

ports being relatively movable in a plurality of different directions, a pluralityoi driving conne spectively movable in accordance with different of said directions of support movement, trip elements respectively movable into the path movement of the respective dogs and respectively connected for movement with the different shiitable elements of the difierent driving connections, other control means including a power driven carrier, dogs on said carrier, and trip elements respectively movable into the path of movement of the re spective carrierdcgs and respectively connected for the movement of the respective shiftable elements, whereby each of, said shiftable elements may be shifted in accordance with support movement in one of said directions or from the movement of said carrier.

5. The combination in a milling machine of a work support, a rotatable tool spindle adjacent said support, a support for'said spindle, said supports being relatively movable a plurality of different directions, a plurality of pow r driven transmission trains respectively for the actuation of said supports in said difierent directions and each including a shiitable motion interrupting element, control means for shifting the shiftable element in each of said trains including for each element a first control dog movable in unison with the ,movement to be controlled thereby, and a second control dog having movement independent of support movement, said second dogs being movable in unison, and a power train connected to actuate said second control dogs. 7 V

6. In a milling machine the combination of a work support, a rotatable tool spindle adjacent said support, a spindle support, said supports being relatively movable in a plurality of different directions, transmission mechanism for said movement including a plurality of elements re spectively shiftable to interrupt and again shiftable to re-establish movement in different of said directions; and a plurality of control means respectively for different of said shiftable elements and each including a first trip device connected to shift one of said shiftable elements, a first trip dog adapted to contact and move said device during movement of the support in one of said directions whereby to interrupt support movement in the direction last mentioned, a power driven carrier, a second trip device adjacent said carrier andconneoted to shift the last named shiftable element, and a second trip dog on said carrier arranged to contact and move said second trip device whereby to re-establish movement in said last mentioned direction.

'7. In a milling machine, the combination of a work support, a rotatable tool spindle adjacent said support, a spindle support, said supports being relatively movable in a plurality of difierent paths, a power source, transmission mechanism for actuating said supports from said source in each of said p'aths, said mechanism including a pluralityoi shiftable motion reversers respectively controlling the direction of supportmovement in the different paths, a control member power driven independently of support movement, a pluoperation from the power movement of said control member. 7

8 In a milling machine, the combination of a work support, a rotatable tool spindle adjacent said support, a spindle support, said supports being relatively movable in a plurality of different,

directions, a power source, transmission mecha msm for actuating said supports from said source in each of said directions at a constant rapid traverse rate or at a pre-determined feed rate and includingmean's shiftable for the choice of said rates, a control member movable independently of said support movement, a'dog onsaid' member, a'trip device having a portion movable into the path of movement of said dog foroperation from movement of said control member,

and a motion transmitting connection from said trip device to said shiftable means.

9. Ina milling machine the combination of a,

work support, a rotatable tool-spindle, a spindle support, said supports being relatively movable in a plurality of difierent paths, a feed rate transmission, a rapid traverse rate transmission, a

plurality of power trains each including a shift able motion reverser and respectively connected for supportmovementin different of said paths;

clutch means shiftable for alternatively connecting the one or the other of said transmissions to actuate said supports in the one or the other of said paths, a carrier alternatively driven from.

the one or the other of said transmission in accordance with the position of said shiftable means, dogs on said carrier including a plurality of dogs respectively for different of said motion reversers and a dog for said shiftable means, and

a plurality of trip devices respectively having a portion movable into the path of movement of differentof said dogs and respectively having mo tion transmitting connections with different of said motion reversers and with said shiftable means whereby movementof-said carrier may control both the rate and direction of movement in each of saidpaths; r i

10. In a transmission and control mechanism for-milling machines. the combination of a plurality of supports including'a work support'and" a tool support, certain of said supports being re' spectively reciprocable. for effecting different paths of relative movement 'between'awork piece and a tool operative thereon and for" effecting different directions of movement in each of said .paths, transmission mechanism including-elements shiftable for support movement ata-constant rapid traverse rate or alternatively at a predetermined feed rate and for selectively de termining in which of said paths said movement shall take place and in which direction in the selected path, and meansfor controlling said,

movements including a carrier independently powerldriven and connectible for-shifting the shiitable elements of said transmission mechanismi q 11.In a milling machine organizationlthe combination'of a plurality of supports including a work support and a toolsupport, certain of saidsupports being respectively movable for effecting different paths of relative movement between a work piece and a tool operative thereon, transmission trains for saidflmovable supports including a plurality of motion reversers respectively shiitable for controlling the direction of support movement in different 70f said paths, each of saidreversers being shiftable into opposite positions effecting opposite movement of the support controlledthereby and into another'position where the support will not be actuated, a

plurality of dogs respectively movable with different of said movable supports, a plurality ofof said reversers from trip devices respectively of movement of different of said dogs'and respectively having motion transmitting connec-' tions with different of and'trip elements being said reversers, said dogs operative to, shift either either support actuating position thereof to said position where the support controlled thereby is not actuated, other transmission mechanism able for actuating either at a constant rapid traverse rate or at a predeineluding means shiftof said supports, either trip members respectively movableinto the path termined feed rate, a power driven carrier, a plurality of dogs on said carrier, and a plurality of movable into the path of movement of the different carrier dogs and respectively having motion transmitting connections to different of said reversers and to said 'shiftable means, whereby said carrier dogs may move each of said reversers to re-establishthe movement of either support and may move said movement.

2O shiftable means to change the rate of support 12. In a milling nmhmthecomtmauon a a plurality. of supports including a work support and a tool support, certain of said supports being respectively movable for efiectiilg different paths of relative movement between a work piece and a tool operativethereon, driving connection's'for V i said movable supports including clutch elements shiftable to actuate either movable support in either direction and ate constant quick traverse rate or a predetermined feed rate, manual-icon trol means for said driving connections' including aplurality of hand levers respectively ,op-

erably connected for shifting difierent ofsaid clutch elements, and other control meansqineluding a powerdriven carrier, a'dogon each 13. In a milling machine the ,combinationof aplurality of supportsincluding a work support anda tool support, certain of said supports being respectivelymovable for efiecting different directionsof relative movement between a work piece and a tool operative thereon, a non-reversiblyrotatable carrier; andipower transmission and control mechanism for said movable supports and carrier including a plurality of meanshrespectively' shiftable to control movement of different of said movable supports, other means shiftable to interrupt the. motion of saidcarrier, a plurality of dogs on said carrier, and a plurality of trip elements respectively movable into, the path of movement of different of said' dogs andrespectively having motion transmitting connections with diiferent of said shiftable means, whereby each y of said shiftable means may be shifted by motion derived from said carrier. l

14. In a milling machine, the combination of a plurality of supports including awork support and a tool support, certain of said supports being respectively movable, for effecting different directions of relative movement-between a work piece and a tool operative thereon, transmission and control mechanism for said. movable suppiece and a tool means for shifting said shiftable elements including a non-reversibly driven rotary carrier, a power train connectible with said carrier includinga member shiftable for connecting or disconnecting said train, and means for shifting said shiftable member including a dog on said carrier, a trip device movable into the path of movement of said dog and having a motion transmitting connection with said trip device whereby said dog may disconnect said train by motion derived from the movement of said carrier, and a hand lever-connected for the manual shifting of said member whereby to subsequently re-establishthe driving connection of said train.

15. Ina'milling machine the combination of a work support, a rotatable tool spindle adjacent said support, a spindle support, a plurality of power trains each connected with one of said supports and respectively for the movement thereof in different paths, a plurality of shiftable clutch elements respectively in diiferent of said trains; and control means including a power driven carrier, and a plurality of dogs on said carrier respectively having potential, motion transmitting connection with different of said clutch elements; said dogs being respectively pcsitioned on said carrier to travel separated paths individual to the respective clutch elements.

'16. In a milling machine the combination of a plurality of supports including a work support andia tool support certain of said supports being respectively movable for effecting different directions of relative movement between a work operative thereon, power transmission mechanismfor actuating said supports "at a constant rapid traverse rate or at a predetermined feedrate and including clutch means shiftable for alternating said rates and including a plurality of power trains respectively connectible' from said clutch means to different of said movable supports through individual. motion reversers, a power driven carrier, a plurality of dogs on said carrier, a trip device adjacent said carrier and movable in the one direction into the path of movement of one of said dogs and in the other direction into the path of movement of another of said dogs, and a motion transmitting connection from said trip device to said clutch 'means, whereby said clutch means may first be shifted by the one dog to cause said supports to be actuated at one of said rates, and may then be shifted by the other dog and in the other direction to changethe rate of support actuation.

17..In a milling machine the combination of a plurality of supports including a work support and a tool support, certain of said supports being respectively movable for effecting different directions of relativeniovement between a work piece and a tool operative ther on, and a power transmission mechanism for actuating said movable supports alternatively at a constant rapid traverse rate or at a predetermined feed rate; andcontrol means including a rotary carrier having non-reversible driving connections, a plurali-ty of dogs on said carrier, a trip device oppositely movable into the path of movement of the one or of the other of said dogs, and motion transmitting connections from said trip device to said clutch means whereby the contacting of said trip. means bythe respective dogs may shift said clutch means in opposite directions to alternate the rates of support actuation.

18. In a milling machine the combination of a plurality of supports including a work support and a tool support, certain of saidsupportsbcing respectively reciprocable for efiecting different paths of'relative movement between a work piece and a tool operative thereon, transmission mechanism for said movable supports including a first clutchmeans shiftable for establishing support-actuation at either a quick traverse rate or at a predetermined feed rate and a plurality of other clutchmeans respectively shiftable for determining the direction of support movement in diiierent of said paths; and control means ineluding a movable carrier, a. plurality of dogs thereon, and a pluralityof trip means respectively movable into the path of movement of different of said dogs and respectively having motion transmitting connection with different of said clutch means, whereby each of said, movable sup ports may be controlled both for rate and for direction of movement by the movement of said carrier.

19. Ina milling machine the combination of a plurality of supports including a work support and a tool support, certain of said supports being respectively reciprocably. movable for effecting different paths of relative movement be tween a work piece and a tool operative thereon, transmission mechanism for movement of said movable supports in either direction and at either a rapid traverse or a feed rate and ineluding shiftable to change the a plurality of reversers respectively direction of movement of the different supports and means shiita-ble to change from the one tothe other of said rates; and control means for said transmission mechanism providing shifting means including different portions respectively. movable in unison with the respective, supports and another portion movable independently of support move ment, motion transmitting connections including for each of said reversers a connection from one of the first named and from the last named portions, and a motiontransmitting connection from said last named portion to said shiftable means. 7 V

20. In a transmission and control mechanism respectively reciprocably movable foreffecting different paths of relative movement between a work piece and a tool operative thereon, transmission mechanism for said movable supports including a plurality of .reversers respectively 'shiftable to change the direction of actuation of different of said movable supports and including means shiftable to change the rate of support actuation, a carrier rotatably mounted and nonreversibly power driven, a plurality of adjustable dogs respectively mounted on different of. the movable supports, other dogs adjustably'mounted on said carrier, a plurality of motion transmitting connections each having different portions respectively positioned for contact by one ofthe first named and by one of the last named dogs, said connections being respectively consupported fromthe stationary support,transmission mechanism connecting said pulleywith said reciprocable support for movement thereof in a plurality of paths and including a plurality of 'shiftable control elements respectively for different of said paths and a shaft journaled in said slidable support and adapted to maintain a driving connection despite of said supports, a control device for themovement of said plurality of control elements and including a rotatable carrier, and a power train connected with said carrier and to derive power from said shaft. i V

22. In amilling machine having three .supports, one of which is stationary and the other two each movable relatively thereto, the combination of aqdrive pulley rotatably supported 'from said stationary support, a pair of rotatable elements each journaled in one of said movable supports, a train connecting said pulley and one of said elements and including a feed rate change device, atrain connecting said pulley to drivethe other of said elements at a constant rate, said 'trains eachincluding elements adapted to maintain their driving connection despite the move- 23'; In' a milling machine organization, the

combination of a tool supportand a work support, one of said supports, being stationary and the other beingrelatively movable, a slidable member interposed between said supports, a drive member supported fronr'the stationary support,

a plurality of clutch bcontrolled transmission trains respectively connected with the movable support and with said slidable member, a rotatable transmission element carried by said slida'ole member and driven from said drive member, control means for the clutches of said trains includ- -inga carrier rotatably supported from said slidablelmember, and a power train connected'with saidcarrier, each of said trains able from said transmission element.

24. In a chilling machinejthe combination of a plurality of supports including a work support and a tool support, one of said supports being stationary and another being movable, transmission, mechanism connected for the movement of the movable support including a shifta-ble clutch, and control means for the shifting of said clutch including i a rotatably supported carrier mounted for bodily movement with said movable support, said carrier being power operable independently ofthe movement of said support.

25. In a millingmachine, the combination of a plurality of supports including a work support and a tool support, certain ofsaid supports being respectively movable for efiecting different paths of relative movement between a work piece and a V return to said, starting point after a variety of tool operative thereon, transmission and control mechanism for said movable supports including a plurality of devices respectively shiftable to alter the movement of the different supports, a carrier movable independentlyof support movement, a power train for driving said carrier exclusive of said shiftable devices, a plurality of adjustable dogs on said carrier and movable therewith in a corresponding plurality of dilTerent paths, a pluthe relative movement from the one or the other of said ale-- being power operrality of trip devices respectively movableinto the a path of movement of the difierent dogs, and moof relative movement between a work piece and a' tool operative thereon, transmission mechanism including a plurality of clutch controlled support trainsrespectively conneotible with different of said movable ing a feed clutch element and arapid traverse,

clutch element'interconnected by gearing; a feed supports and each havtrain, a rapid traverse alternatively shiftable train with each of said feed clutch elements or train, and clutch means for connecting said rapid traverse train with each of said rapid traverse elements; and control means for said transmission mechanism includ ing a carrier power driven from one of'said support trains, and trip means operablefrom movement of said carrier for shifting of said clutch means,'said gearing being ofdiirerent ratio in the diiierent supporttrains.

forwconnecting said feed 27. In a milling machine the combination of a work support, a rotatable tool spindle adjacent said support, a spindle support, said supports 7 being relatively movable in a plurality of transverse paths, transmission trains for said support movement including means shiftable for said support; movement in either direction and at either, a quick traverse rate or at a feeding rate in either of said paths; and control means including a carrier non-reversiblypower drivenin rotary cycles, and means operative from the'mova ment of said carrier during each cycle thereof to shift a plurality of saidshiftable devices respectively altering support movement in the diiferent paths. 7

28. In a milling machine, the combination of a movable work support, a feed transmission, a

rapid traverse transmission, trains connected withsaid support for the movement thereof in a plurality of transverse paths, each of said trains including 'a shiftable reverser element and elements shiftablefor connecting with each of said transmissions; and control means including a carrier non-reversibly power driven in rotary cycles and operablefor the shifting of each of said elements. a g

29. In a milling machine, the combination of a work support, a rotatable .tool spindleadjacent said support, a support for said spindle, said sup,-

ports beingrelatively movable in a plurality of transverse paths, transmission mechanism for,

said support movement includinga plurality of.

reversers respectively individual to said different paths and each shiftable in oppositedirections to effect opposite movement and to a central position effective to break the driving connection, and also including means alternatively shiftable to establish a feed rate or a relatively fast rate of support movement, whereby support movementjmay take place from'a starting point and movements in diirerent directions and of diiierent duration; and control means for shifting said"reversers and shiftable means including a,

the duration of one carrier cycle'may be altered to substantially correspond to the total 3 time 

